CONSTRUCTION & Technology: Built with Hagane body for assured resilience Designed with Hagane Technology for long-lasting smoothness Features SilentDrive technology for less noise and vibration for a quieter and smoother reel operation G-Free Body technology shifts the reel's center of gravity closer to the rod for better balance and less fatigue during long days on the water Enhanced spool design features Shimano's Propulsion Line Management System for increased casting performance